With that NR 360 candler, it light washes thru the white plastic lid. Do you have something dark like black craft paper/cardboard you could cut a hole into and set over top of the light? This would focus the light into the egg more to see better.
Candle thru the fat end in complete darkness in room also helps. Good luck with your hatch.
Candle thru the fat end in complete darkness in room also helps. Good luck with your hatch.